Barba de la Rosa, Ana Paulina, et al. “Influence of the Growing Conditions on the Flavonoids and Phenolic Acids Accumulation in Amaranth (Amaranthus Hypochondriacus L.) Leaves”. REVISTA TERRA LATINOAMERICANA, vol. 37, no. 4, Oct. 2019, pp. 449-57, doi:10.28940/terra.v37i4.541.